ANATOMY

Detailed explanation-1: -Alzheimer’s disease causes the brain to shrink and brain cells to eventually die. Alzheimer’s disease is the most common cause of dementia-a gradual decline in memory, thinking, behavior and social skills. These changes affect a person’s ability to function.

Detailed explanation-2: -Alzheimer’s disease, the most common cause of dementia. Vascular dementia. Frontotemporal dementia. Lewy body dementia.

Detailed explanation-3: -Alzheimer’s disease is thought to be caused by the abnormal build-up of proteins in and around brain cells. One of the proteins involved is called amyloid, deposits of which form plaques around brain cells. The other protein is called tau, deposits of which form tangles within brain cells.

Detailed explanation-4: -Alzheimer’s disease and related dementias-cause a buildup of harmful proteins and other changes in the brain that lead to memory loss and other thinking problems. Stroke-can damage blood vessels in the brain and increase risk for vascular dementia.